【摘要】 目的 研究EMR照射对大鼠血脑屏障超微结构及通透性的影响。 方法 用硝酸镧示踪和电子显微镜观察EMR照射后大鼠血脑屏障通透性及超微结构的变化。 结果 EMR照射后，海马、皮层组织、下丘脑中硝酸镧颗粒从毛细血管中渗出，毛细血管紧密联结开放，毛细血管内皮中吞噬小体增加，可见镧颗粒沉积于组织间隙及神经细胞内膜上，神经细胞变性，但结构基本正常。 结论 EMR照射后大鼠血脑屏障通透性增大，但尚未对脑神经细胞结构的完整性造成损伤。

    【关键词】 大鼠;血脑屏障;辐射

    Influence of electromagnetic radiation on ultrastructure and permeability of blood-brain barrier on rats

    WANG Qi，ZHANG Yuan-ju，WANG Jin，REN Dong-qing，SONG Zu-jun，GUO Guo-zhen，GUO Yao.

    1.Department of Emergency Xijing Hospital，Xi'an 710032;2.Department of Physiotherapy and Rehabilition.Fourth Military Medical University，Xi'an 710032，China;3.Department of Radiation Medicine，Fourth Militory Medical University，Xi'an 710032，China

    【Abstract】 Objective To explore the influence of Electromagnetic radiation on ultrastructure and per-meability of BBB on rats.Methods The ultrastructure and permeability of BBB on rats with Electro-magnetic radiation by electron microscope after injection of lanthanum nitrate were observed.Results After electromagnetic radiation ......